#include<bits/stdc++.h>
using namespace std;
bool cmp(int a,int b)
{
    return a<b;
}
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n;
    cin>>n;
    int a[n+1];
    int b[n+1];
    int num=n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        b[i]=1;
    }
    sort(a+1,a+n+1,cmp);
    for(int i=2;i<=n;i++)
    {
        for(int j=1;j<=i;j++)
        {
            if(a[i]>a[j]&&b[i]==1&&b[j]==1)
            {
                b[j]=0;
                j=i;
                num--;
            }
        }
    }
    cout<<num;
    return 0;
}
